Countless gigantic creatures attack the city! Defense forces, sortie. ・You will become a member of the Earth Defense Force and defeat the approaching enemies such as UFOs, giant mechas, and giant monsters to save the earth from the alien invasion. – Equipped with more than 100 kinds of weapons that gathered the best of modern science, and confronted with the latest weapons developed for the coming day, such as tanks and helicopters. ・Two players can play at the same time. Both battle and cooperation are OK. The defense force is not alone!